I would like to ask you whether LyX can be used to draw flowcharts.
sure, but it makes no real sense to use LyX for this. Create your flowcharts with a simple text editor and include it in LyX, if they are part of another document.
http://www.pstricks.de/psmatrix/psmatrix.phtml#flowchart http://www.educat.hu-berlin.de/~voss/LaTeX/layouts/nassi.phtml
Herbert
